EX9520U4
RS-232 to 4-channel Independent RS-485 Converter
- Input: 1 RS232 channel: TxD, RxD and GND
 - Output: 4 RS-485 channels (data+, data-)
 - Built-in 120Ω termination resistor for each channel (by jumper)
 - Isolation Side RS-232 ( EX9520U4 )/ RS-485 (EX9520U4R)
 
Datasheet
              
          Product Specification
              | Input | 1 RS232 channel: TxD, RxD and GND, | 
| Output: | 4 RS-485 channels (data+, data-) | 
| Speed | Auto switching baudrate up to 115.2 kbp | 
| Built-in 120Ω termination resistor for each channel (by jumper) | |
| Isolation Side | RS-232 (EX9520U4 )/ RS-485 (EX9520U4R)  | 
| RS-232 connector | Female DB-9 | 
| RS-485 connector | screw terminal block | 
| Isolation voltage | 3000 V DC | 
| Power input | +10 to +30 VDC | 
| Power Consumption | 2.1W | 
| Operating temperature: | -25 ~ 70 °C (13 ~ 158 °F) | 
| Storage temperatur: | -25 ~ 85 °C (13 ~ 185 °F) | 
| Humidity | 5~95% RH, non-condensing |